Power drive mounting apparatus



Nov. 28, 1944. J. c. M CUNE ETAL 2,363,604

POWER DRIVE MOUNTING APPARATUS Original Filed Sept. 27, 1941 III =3 102 f .5 x 99 I9 29a I 97 85 106 112 25a 21 85 di INVENTORS Joseph C. McCune 78 I BYGeorge K. News, 109 V M @xm ATTORNEY Patented Nov. 28, 1944 1 UNITED PATENT OFFICE e Q 2,363,604 e m 4 i 1 roWEninRrvE MOUNTING APPARATUS Joseph 0. income; 'Edgewood, and George K. i

Nowell, near Pitcairn, Pa, assignors to The Westinghouse Air Brake Company, Wilmerding, Pa., a corporation of Pennsylvania Original application September 27, 1941, Serial No. 412,658. Divided andthis application November 21,1942, Serial No. 466,430 i 6 Claims. 11. lose-111s) This invention relates to power drive mounting apparatus and has particularrelation to apparatus for mounting a .drivenshaft in associated relation with a driving shaft. The present application is a division of our prior copending application; Serial No. 412,658, filed September 27, l94.-l, and later abandoned. e j

It is an object of our present invention to provide a novel arrangement and apparatus whereby to support a driven shaft solely from a driving shaftass ociated therewith without external support for the driven shaft. i

More particularly," it is an object of our invene .tion to provide an arrangement and apparatus for mounting a device; responsive ,to the notativec condition of the wheel andaxle assembly ofa railway car, in associatedfrelation therewith at a a point between the wheels Where, due to thej presence of other elements as well as the construction of the car truckand low center sill of the car, the device cannot otherwise be mounted 1 in a position between the wheels.

The above-objecta and other objects of our invention which will be made apparent hereinafter,

are obtained by apparatussubsequently to be' described and shown in the accompanying drawour present invention "and thus no furtherdescription of the device is deemed necessary except ing wherein Figure 1 is a fragmental elevational view illustrating one embodiment of our invention,

Figure 2 is a horizontal on the lineIII-III of Figure 2; also showing further details of construction. i

Description While our inventionmay be employed in vari-i sectional View, taken substantially on the line II-II of Figure 1, showingfurtherdetails of construction; and Figure 3 is a sectional view, taken substantially to point out "that it has a rotary shaft or spindle 38 which is intended to be driven in accordance with the rotationalspeed of the rotating axle I2. Insofar as our present invention is concerned, it

.is immaterial as to what use the device, corre sponding to the device 2| is putor utilized. Thus it may be a speed governor or a generatorinstead of the rotary inertia device shown.

as by a plurality of bolts 92. A split bushing 93 of cushioning material, such asrubber, maybe provided as shown between the sleeve 91 and axle l2 for dampening or absorbing a certain amount of the road shock which would otherwise be transmittedto the device 2|. i

. The sleeve 9| has two radially extending 'fianges 94 at opposite ends thereof,rwhich flanges are formed with frusto-conical surfaces 95 "thereon. The surfaces 95 are preferably at an angle of 45 to the axis of the tubular axle l2 and face in opposite. directions toward each other.

The casing 25a of the. device 2! has two oppositely "extending arms 91. Each. arm 91 has a pin 96 fixed therein on which an idler wheel 99 is rotatively mounted, as by ball bearings IOI. 1

A driving wheel 29a is secured to the outer end of the spindle 38 of the device. The idler wheels 99 and the driving wheel 29a have rim faces beveled at an angle corresponding to that ing is of the composite type having an inner non-rotative axle l3and an outer rotative concentrically disposed tubular axle 12. The car wheels (not shown) are fixed on oppositeends of the tubular axle and are journaled .on the axle I 2 rotates.

of the frusto-conical surfaces on theflanges 94 and are provided with friction rims or tires I02 of suitable material, such as rubber.

The frusto-conical surfaces 95 on the flanges 94 "act as trackways on which the wheels 29a and due to its weight as the axle rotates, the driving wheel 29a being incidentally rotated according .to the rotational speed of the axle l2.

Aisuitable circular shield m5, of sheet material, may be. supported in concentricspaced relation around the axle l2 and sleeve 9| as by attaching the ends thereof to opposite sides of the device are not essential tothe understanding of 55 casing 25a byscrews I96. In railway service applications, the shield I05 serves to prevent entry of dirt particles, stones, or cinders into the space between the flanges 94, which might interfere with the rolling contact of the wheels 29a and 99 on the flanges and cause possible jamming of the wheels 29a and 99.

' The weight of the device 2| is suflicient under normal circumstances to maintain it in a position beneath the tubular axle l2 as the axle rotates. If the wheels 29a and 99 become jammed, however, the device 2| may revolve with the axle and cause damage to itself and parts of the car wheel truck or mechanism carried by the wheel truck. A suitable bracket arm I08 may, therefore, be provided for preventing the revolution of the device 2| with the axle l2. In the case of a car wheel truck,'the arm I08 may be attached at its upper end to a suitable part of the truck frame. has a circular disc or supporting member l09 disposed directly beneath device 2|. springs I I located on diametrically opposite sides of the device it, are connectedat their opposite ends to suitable lugs Ill on the casing of the device 2i and to circular disc I09. The device 2| is thus permitted to have limited movement concentrically around the rotational axis of the wheel and axle assembly but it cannot revolve to itself or parts of the Wheel truck. Springs Htl assist in maintaining the frictional contact of the wheel 29a and 99 with the flanges 94, espe- 1 cially when the truck frame moves downwardly with increased loading.

The supporting disc I09 and bracket arm I08 also serve to support a conduit or cable H2 containing wires 18 and 83 leading to a switch e eneath s11 rotary element.

rietionally engaging the flanges.

2. Apparatus 1'01 supporting a device, havin a driving wheel, in associated relation with a rotary shaft so as to cause the driving wheel to be driven by rotation of the shaft, said apparatus comprising means secured to said shaft and providing a pair of axially spaced frustoconical surfaces concentrically surrounding the shaft, and a plurality of idler wheels having rims beveled in accordance with said frusto-conical surfaces and cooperating with the driving wheel in 'a manner to suspend the device vertically beneath the shaft from and between said frustoconical surfaces with the rim of the driving wheel of the device frictionally engaging one of said frusto-conical surfaces.

3. Apparatus for mounting a device, having a driving wheel, in associated relation with a wheel and axle assembly of a railway car truck so that Xlv g whee surface on one of sea At its lower end the arm I08 8 Two coil the driving Wheel is driven by rotation of the wheel and axle assembly, said apparatus comprising means secured to the axle connecting the wheels of the wheel and axle assembly and providing a pair of axially spaced frusto-conical surfaces concentrically surrounding the axle, a plurality of idler wheelsrotatably carried by the casing of the device and cooperating with the driving wheel in a manner to suspend the device from the axle by engagement with the frustoconical surfaces, and means attached to the frame of the wheel truck and cooperating with said device in a manner to prevent revolution of the device about the axle.

4. Apparatus for mounting a device, having a driving wheel, in associated relation with a wheel and axle assembly of a railway car truck so that the driving wheel is driven by rotation of the wheel and axle assembly, said apparatus comprising means secured to the axle connecting the wheels of the wheel and axle assembly and providing a pair of axially spaced frusto-conical surfaces concentrically surrounding the axle, a

plurality of idler wheels rotatably carried by the using at the device and cooperative with the vice from the axle by engagement with the frusto-conical surfaces, and resilient yielding means connecting the casing of thedevice to the wheel truck frame whereby to prevent revolution of the device about the axle and at the same time assist in maintaining the rim of the driving wheel in frictional contact with one of said frusto-conical surfaces.

5. Apparatus for mounting a device, having a driving wheel, in associated relation with a wheel and axle assembly of a railway car truck so that the driving Wheel of the device is driven by rot-ation of the wheel and. axle assembly, said. apparat-us comprising means detachably secured. to the axle at a point between the wheels of the Wheel and. axle assembly and providing a, pair Of axially spaced annular. trackways concentrically Surrounding the aide, and a plurality of said. annular trac e. lsepax-e us for molmting a device. having a driving m e e a ,e H web a and ar le assembly or a. railway car truck SO that the driving wheel of the device is driven by rotameans for preventing rotation of said device around the axle.

' JOSEPH C. McCUNE. GEORGE K. NEWELL. 

